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How to Choose an ISP: Spam Filtering
Understanding Spam
Spam used to mean that canned, mass-produced mystery meat
that someone else liked. The modern version of spam—using
electronics to send bulk advertisements and other messages—is
just as unsavory at times. At its worst, spam clogs messaging
systems like email, instant message windows, discussion forums,
web windows, and even cell phones; mostly spamming is done
through email and web search engines. Because it connects
you to the internet, your ISP should be your first line of
defense against spam.
Devious Devices Used by Spammers Today
Email spammers your email from forums where you may have
listed your address, from other mailing lists, by guessing,
or by using web spiders. Spammers get around filters by changing
filtered words in the subject line, such as flipping two letters
in a word or eliminating a letter. Some spammers place punctuation
between letters as well. Examples are: crdit crd, credti card,
c*r*e*d*i*t c*a*r*d. Even though email services are always
trying to upgrade their filters, it seems like it’s the old
mouse and mousetrap analogy—as soon as someone builds a better
mousetrap, the mouse gets smarter. At the very least it’s
an inconvenience—at the most, you could get a destructive
computer virus or even get bilked out of your life’s savings
by a scam of some kind.
Find Out What an ISP Does to Reduce Spam ... Before You
Sign Up
Before you choose an ISP, find out what they do to prevent
spam. This level of filter is generally good, and your company
should offer it. Internet security software that you install
yourself is an excellent addition, but probably won’t catch
much. The best way is to trash spam before it even gets to
you.
The White List
Some ISPs that offer email do this with a white list, where
you enable the email addresses from which you will accept
mail. Any email from other addresses will be rejected. Some
also use the black list approach, where you enter addresses
you want blocked—this is cumbersome for a user, as spam comes
from many hundreds and thousands of different origins. And
some ISPs are so good at filtering that messages you want
to get are sometimes rejected—and yet other spam still makes
it through.
The Final Analysis
Even so, your ISP should be making every effort to filter
out unwanted emails, popup ads, and other annoying (and dangerous)
intrusions. Many now offer popup blockers, Norton AntiVirus
software, email spam blockers, and more. Although you might
pay a little more for your ISP service, it would be worth
it.
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